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Practice quizzes / CDL Combination Vehicles Practice Questions - CDL Combination Vehicles Knowledge Test Exam / Question 66496
Practice question

Which trailer light malfunction would prevent legal operation?

  1. A single trailer running light
  2. Brake lights or turn signals not working
  3. An interior dome light
  4. A reading lamp in the cab

Answer: B — Brake lights or turn signals not working

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: CDL Combination Vehicles Practice Questions - CDL Combination Vehicles Knowledge Test Exam →
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